Hiromi Ishii, Tokyo JP

Hiromi Ishii, Tokyo JP

Patent application number

Description

Published

20100126067

BURNER FOR HIGHLY CAKING COAL, AND GASIFIER - In a burner for highly caking coal in which a solid fuel channel and a gasifying agent channel are provided in a double pipe structure, the temperature increase of the particles of a highly caking solid fuel and the resulting fusion and expansion of the particles are prevented or suppressed, thereby enabling a stable operation of the gasifier. In a burner for highly caking coal in which a solid fuel channel that is attached for gasifying a highly caking solid fuel that has been pulverized into particles and that supplies the solid fuel into the gasifier, and a gasifying agent channel that supplies a gasifying agent into the gasifier are provided in a double pipe structure, the burner has a triple pipe structure including a cooling water channel that circulates cooling water between the solid fuel channel and the gasifying agent channel, and the cooling water is recovered after use.

05-27-2010

20100175364

INTEGRATED COAL GASIFICATION COMBINED CYCLE FACILITY - An integrated coal gasification combined cycle facility is provided that can prevent a reduction in power generation efficiency even when low-grade coal having a relatively-high moisture content is used. Included are: a gasification section that gasifies supplied coal; a gas power generation section that generates power by using gas supplied from the gasification section; a steam power generation section that generates power by using the heat of exhaust gas discharged from the gas power generation section; and a coal drying unit that dries the coal by using exhaust heat discharged from the steam power generation section and that supplies the dried coal to the gasification section.

07-15-2010

20100180502

BURNER FOR HIGHLY CAKING COAL, AND GASIFIER - In a burner for highly caking coal in which a solid fuel channel that is attached penetrating through a surrounding wall of a gasifier for gasifying a highly caking solid fuel that has been pulverized into particles and that supplies the solid fuel into the gasifier by gas flow transportation, and a gasifying agent channel that supplies a gasifying agent into the gasifier are provided, a blockage detection unit that detects a blockage situation of the solid fuel channel is provided, and a process for reducing the temperature of the solid fuel is performed when the blockage detection unit detects a predetermined blockage situation.

07-22-2010

20100180503

STARTING METHOD OF COAL GASIFIER AND STARTING DEVICE THEREFOR - In a coal gasification furnace adapted to feed pulverized coal thereinto by the use of inert carrier gas and gasify the same, any startup burner can be unnecessitated thereby eliminating any startup combustion chamber. Further, even in the use of a startup burner, it is smaller and lighter in weight than conventional startup burners, allowing the startup combustion chamber to be compact and limiting the height of the entirety of the gasification furnace. As a characteristic feature, a pulverized coal fuel supply passageway (

07-22-2010

20110116979

COAL GASIFIER - Provided is a coal gasifier enabling a reduction in size of a shift reactor by generating hydrogen-rich gasified coal gas. In a coal gasifier generating gasified coal gas by a gasification reaction proceeding in a furnace fed with a gasifiable raw material, such as coal, and a gasifying agent, at least one of water and steam is fed to the furnace as a material accelerating a hydrogen-generating reaction that proceeds simultaneously with the gasification reaction.

05-19-2011

20110126743

GASIFICATION FURNACE APPARATUS - Provided is a gasification furnace apparatus equipped with a supply source of low-oxygen-concentration drying gas that does not require fuel. A coal pulverizer that produces pulverized coal by pulverizing coal, an air separator that separates air into oxygen gas and nitrogen gas, and a gasification furnace that produces product gas by introducing thereinto the pulverized coal and the oxygen gas, are included. By receiving a supply of excess nitrogen gas from the air separator, the air diluted with nitrogen is used as a source of low-oxygen-concentration gas for drying the pulverized coal, and an air heater that heats the source of low-oxygen-concentration gas to a temperature at which drying can be performed is provided.

06-02-2011

20110308230

INTEGRATED COAL GASIFICATION COMBINED CYCLE PLANT - Provided is an integrated coal gasification combined cycle apparatus that can operate a coal pulverizer using gas turbine exhaust gas as drying gas even when the concentration of oxygen in the gas turbine exhaust gas to be used as the drying gas is temporarily increased. In the integrated coal gasification combined cycle plant using combustion exhaust gas from a gas turbine as the drying gas for a coal pulverizer and adjusting the temperature of the drying gas by mixing outlet gas from a denitration device installed inside an exhaust gas boiler and outlet gas from the exhaust gas boiler, an auxiliary burner is started when the concentration of oxygen in the drying gas is increased to a predetermined value or more and is installed so as to adjust the concentration of oxygen in the drying gas using the combustion exhaust gas generated thereby.

INTEGRATED COAL GASIFICATION COMBINED CYCLE PLANT - Synthesis gas (syngas) gasified in a gasification furnace to which coal is introduced burns in a combustor. An exhaust-heat recovery boiler generates steam by using exhaust gas let out from a gas turbine equipped with the combustor. The steam generated in the exhaust-heat recovery boiler is introduced to a steam turbine. A generator is driven by the steam turbine and the gas turbine to generate electrical power. Part of the exhaust gas let out from the gas turbine is introduced to a carbon-dioxide recovery unit, where carbon dioxide is recovered therefrom. Coal is carried to the gasification furnace by the carbon dioxide.

10-04-2012

20130112543

GASIFICATION FACILITY - Provided is a gasification facility which uses flammable gas as a carrier medium for air-transporting powder fuel, used as a gasification raw material, to a gasification furnace and which can safely release the flammable gas, exhausted from a fuel feed hopper, to the atmosphere. In the gasification facility using flammable gas as a carrier medium for transporting pulverized coal as powder fuel from a pulverized coal feed hopper (

05-09-2013

20130247465

HYDROCARBON FEEDSTOCK GASIFIER - A hydrocarbon feedstock gasifier (gasifier) is provided with: a heat transmission surface disposed within a gasification region of a gasifier configured from a pressure vessel for generating produced gas by partially oxidizing coal which is a hydrocarbon feedstock; a heat exchanger disposed on the path of a circulation line for a circulation medium circulating within the heat transmission surface and for exchanging the heat of the circulation medium; and a circulation pump for circulating the circulation medium.